Both Canon T6i and Canon 80D have 24.0 MP resolution sensors but Canon T6i's sensor is APS-C (22.3 x 14.9 mm ) and Canon 80D's sensor is APS-C (22.5 x 15 mm ).
Since Canon 80D's has a larger sensor area with the same resolution, this means that it also has a larger pixel area hence better light collecting capacity for a given aperture compared to Canon T6i.
Below you can see the T6i and 80D sensor size comparison.
Sensor Size and Resolution Comparison image of Canon T6i and Canon 80D Cameras
Canon T6i and Canon 80D have almost the same sensor size, so neither of them has any significant advantage over the other in terms of providing control over depth of field when used with the same focal length and aperture.
DxOMark Sensor Scores
DxOMark is a benchmark that scientifically assesses image quality of camera sensors. It scores camera sensors for color depth (DXO Portrait), dynamic range (DXO Landscape) and low-light sensitivity (DXO Sports), and also gives them an overall score. Canon T6i and Canon 80D sensors have been tested by DxO and the results show that 80D has a better overall score of 79, 8 points higher compared to T6i's score of 71.
| Model |
Overall |
Color Depth |
Dynamic Range |
Low-light ISO |
|
Canon T6i |
71 |
22.7 bits |
12.0 Evs |
919 ISO |
|
Canon 80D |
79 |
23.6 bits |
13.2 Evs |
1135 ISO |